Each stage of the sleep cycle lasts about how long?
A)an hour
B)30 minutes
C)15 minutes
D)90 minutes

Question

Quizplus · Accepted Answer

The sleep cycle lasts about 90 minutes, and during each cycle, we move through 5 stages of sleep, from light to deep, and back to light sleep again. Each stage lasts for a different amount of time, with the first stage lasting only a few minutes and the later stages lasting longer. Knowing the length of the sleep cycle can be helpful in planning sleep schedules and ensuring adequate rest.

Each Stage of the Sleep Cycle Lasts About How Long